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H. J. HOOTON & P. A. JONES.

(No Model.)

DAMPER REGULATOR.

Patented Sept 16,1884.

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4 Sheets-Sheet 2.

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H. J. HOOTON 8: F. A. JONES.

DAMPER REGULATOR. No. 305,311. Patented Sept. 16, 1884.

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(No Model.)

4 Sheets--Sheet 3. H. J. HOOTON & F. A. JONES.

R DAMPER REGULATOR.

N0. 305,311. Patented Sept. 16,1884.

4 Sheets-Sheet 4.

(No Model.)

H. J. HOOTON & F. A. JONES.

DAMPER REGULATOR. No. 305,311.

Patented Sept. 16, 1884.

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UNITE TATES Erica.

PATENT HORACE J. HOOTON, OF BOSTON, MASSACHUSETTS, AND FLORENTINE A.JONES, OF NEV YORK, N. Y., ASSIGNORS TO THE AMERICAN STEAM APPLIANCECOMPANY, OF NEW YORK.

DAMPER-REGULATOR.

SPECIFICATION forming part of Letters Patent Nb.'305,311, datedseptember16, 1884.

Application filed January 5, 1884. (No model.)

. TO all whom it may concern.-

Be it known that we, HORACE J. Hoocron, of Boston, in the county ofSuffolkand State of Massachusetts, and FLORENTINE A. JoNEs, of the city,county, and State of New York, have invented new and useful Improvementsin DampenRegulators, of which the following is a specification.

This invention relates to certain improvements in dampers anddamper-regulators, and the means for controlling the former moreparticularly, but not exclusively, in connection with steam-boilerfurnaces, the nature of such invention being fully described below,

and illustrated in the accompanying drawings, in which Figure 1 is anelevation showing a portion of a chimney broken out to better illustratethe invention and our damper-regulator and its necessary connections.Fig. 2 is an enlarged elevation in detail of certain connectionssupporting the damper-shaft, which is shown in section. Fig. 3 is a partside elevation and part vertical section, showing the damper-shaft, itscounterpoise as usually constructed, &c. Fig. 4 is a vertical section ofa horizontal flue,with a view of the damper and regulating connectionsin elevation. Fig. 4 is a plan of the upper end of the damper and itsimmediate connections. Fig. 4" is a horizontal or cross section of thedamper. Fig. 4 is an elevation showing a different style of bellows fromthat shown in Figs. 1 and 4 and its immediate connection. Fig. 5 is anenlarged detached elevation of the counterpoising mechanism. Fig. 6 is aside elevation of the same, a small portion being represented as brokenout. Fig. 7 is an enlarged vertical section of a portion of the underwall of the horizontal flue shownin Fig. 4, showing the support for thedamper-shaft. Fig. 8 is an enlarged vertical section of the same, takenat right angles to that shown in Fig. 7. Fig. 9 is an enlarged rearelevation of the device connecting the rod F and bell-crank H. Fig. 10is a vertical section of the same'on line at, Fig. 9. Fig. 11 is anelevation of a modification of the counterbalancing mechanism. Fig. 12is the lever f, fulcrumed at f, and given motion by the rod extendinginto thevsteam-chamher 9, provided with the usual diaphragm, and withsteam from the boiler through the pipe 0.

All the above parts are well known, and are constructed and operated inthe usual manner, and hence require no further explanation, it beingunderstood that the steam from the boiler passing into thesteam-chamber, by means of the intermediate mechanism above The med,operates the damper in order to regulate the draft.

The damper-shaft a is supported on the wheels h, (not new in themselvesconsidered,) whose axles h bear in depressions B in the carriageB;slotted at B, and secured by means of the bolts 73 and nuts 2" to theframe C, of the shape shown in Figs. 2 and 3. Screws 1) eX- tend throughthe frame 0 up against the masonry in the chimney, which is slightlychambered out for the purpose, thus enabling the frameto be made rigidand secure therein, and a screw, 0, bearing against the under side ofthe carriage B, renders it vertically adjustable, while it is secured bythe nuts i in the slots B.

Adj ustably connected to the crank b is a rod, E,whose lower end issecured loosely to a bellows, E. This bellows has a small aperture,which lets out or in the air slowly, and is usually of the ordinary kindshown in Figs. 1, 4,

and 12; but it may be of the style shown in Fig. 4, or of any ordinarydescription. Its ofiice is to provide a cushion of air, whereby thesudden vibration or jar of the damper,

caused by sudden drafts, currents, or gusts of 5 air in the chimney orflue, may be gently checked in a noiseless manner. The bellowsconnectionE may be secured, if desired, to an independent damper-crank, or to theelbow, as in Fig. 4, or to the lever d, as in Figs. 12 and 13, or to anypart of the mechanism at any point practicable to produce the desiredeffect.

In Fig. 4, A represents a horizontal flue, the damper-shaft being ofcourse vertical.

In order to protect the damper-shaft a from the intense heat, we providea casing or semitube, It, on each side, secured to the damper a in themanner shown in Figs. 4 and 4", so as v to leave an air-space betweenthe casing and the damper-shaft. The casing is secured to the damperpreferably by the clamps 7c.

F is a rod adj ustably secured to the dampershaft crank b and thebell-crank lever H,which is pivoted at H to a bracket, J, Fig. 6,secured to the wall. Itigidly secured to this bell-crank (see Figs. 4,5, 6) is a ring, G, which is provided with radial arms I, adapted to beslid around to any point thereon, or secured to or removed therefrom bymeans of the set-screws j, and provided with sliding weights I. The ringG and levers or arms I take the place of the ordinary device, F G,(shown in Fig. 3,) being more efficient, convenient, and more readilyadjusted.

In the modification shown in Fig. 11 the weights I slide on the ring G,instead of on bars radiating therefrom; but we prefer the counterpoiseshown in Figs. 4, 5, 6.

The connection between the bell-crank and the rod F is as follows, andis shown in Figs. 9 and 10 in detail: A box, L, is held onto thebell-crank H by a bolt, N, and nut N. It is kept from relative movementby its flange L, resting on the edge of the bell-crank. An adjustableconnecting-piece, 0, provided with the threaded perforation 0, receivesthe end of the rod F. The connections between the bell-crank and rods 0and E are similar, as are also several of the connections shown in thesedrawings.

In order to protect the pivot upon which the damper turns, (see Figs. 4,7, and 8,) and to render said damper adjustable both vertically andhorizontally,we extend the dampershaft a down into an opening, A, in themasonry A, where it lies over a pivot, 1?,whose highest point is belowthe surface of the masonry. The pivot I is integral with or secured tothe sliding base 1?, slotted longitudinally at P, and fitting into thetrough R of angle-iron. by bolts S and nuts S, said bolts passingthrough the slots 1? in the base P, thus rendering said base and pivotadjustable longitudinally. V 7

An important advantage attained by the slots is the admission of coolair to the pivot, thus aiding in preventing it from becoming overheated.

In the modifications shown in Figs. 12 and 13 the bellows is connectedwith the regulator-arm d, and in the latter modification the The troughR is held in position counterpoise mechanism is connected by the rod 0with the same arm.

WVe are aware that a dash-pot has been used in connection with adamper-regulator, the difliculty with which is, that great power isrequired to start it or set itin motion, and that when in motion ityields gradually and slowly.

By using a bellows instead of a dash-pot, especially in connection withlarge chimneys provided with dampers of great area, where the force ofthe wind is exceedingly strong, and where it is desirable that thedamper may yield slightly to sudden and violent or even moderate gusts,but little power is necessary to produce a slight movement, while anextensive movement is effectually prevented.

Both the bellows and the counterp oise mechanism may be applied at anyconvenient point between the damper and the steanrchamber; or thebellows may connect directly with the damper.

The ring G may either be integral with or rigidly secured to theelbow-lever H; or it may not be entire, but a sufficient portionan arcto accomplish the purpose.

The casing is may extend beyond the edge of the damper into the wallsufficiently to keep the heat from the shaft, if desired, as shown inFig. 4, and may be of any convenient shape in cross-section.

Having thus fully described our invention, what we claim, and desire tosecure by Letters Patent, is-

1. A damper-regulator provided with a bellows, said bellows beingapplied to or connected with said regulator at any suitable point, forthe purpose set forth.

2. In a damper-regulator, the combination, with the damper a,damper-shaft a, and crank b, of the connecting-rod E and bellows E,substantially as and for the purpose described.

3. In a damper-regulator, a counterpoise or counter-balance consisting,substantially, of an elbow or bell-crank lever, to which is rigidlysecured or with which is integral a portion or the whole of a ringadapted to receive weights or weighted arms, substantially as and forthe purpose set forth.

4. In a damper-regulator, the combination, with the elbow-lever H, ofthe ring G, rigid therewith and provided with the removable weightedarms I I, substantially as and for the purpose described.

5. The herein-described damper-shaft bearing, consisting, essentially,of the following parts, viz: the wheels h, carriage B, provided with thedepressions B and slots B, and frame I below or behind the inner surfaceof the flue,

substantially as and for the purpose described.

7. The combination of the damper-shaft a and masonry A, the pivot P, andbase P,

I0 shaft on, of the collar or casing 70, substantially as and for thepurpose set forth.

10. A damper-shaft consisting, essentially, I of the wheels h and asupporting mechanism held firmly in place by the screws D, extendingupward against the masonry, and thereby r5 pressing the supportingmechanism downward against said masonry, substantially as and for thepurpose described. p

11. The combination, with a damper, of a bellows suitably arranged inconnection there- 20 with, for the purpose set forth.

' HORACE J. HOOTON.

FLORENTINE A. JONES. Witnesses:

HENRY W. WILLIAMS, J OSEPH IsHBAUGH.

